JPH04120533A - Method for preventing cold flow - Google Patents
Method for preventing cold flowInfo
- Publication number
- JPH04120533A JPH04120533A JP24007990A JP24007990A JPH04120533A JP H04120533 A JPH04120533 A JP H04120533A JP 24007990 A JP24007990 A JP 24007990A JP 24007990 A JP24007990 A JP 24007990A JP H04120533 A JPH04120533 A JP H04120533A
- Authority
- JP
- Japan
- Prior art keywords
- dry film
- cold flow
- sheet
- photosensitive dry
- desiccating agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 25
- 239000002274 desiccant Substances 0.000 claims abstract description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract description 6
- 229910021536 Zeolite Inorganic materials 0.000 abstract description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 6
- -1 polypropylene Polymers 0.000 abstract description 6
- 239000010457 zeolite Substances 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000741 silica gel Substances 0.000 abstract description 5
- 229910002027 silica gel Inorganic materials 0.000 abstract description 5
- 239000004743 Polypropylene Substances 0.000 abstract description 4
- 229920001155 polypropylene Polymers 0.000 abstract description 4
- 229920000728 polyester Polymers 0.000 abstract description 3
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 2
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- OIICUUGPVAEJSH-UHFFFAOYSA-M (2-bromophenyl)methyl-ethyl-dimethylazanium;bromide Chemical compound [Br-].CC[N+](C)(C)CC1=CC=CC=C1Br OIICUUGPVAEJSH-UHFFFAOYSA-M 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- MPCRDALPQLDDFX-UHFFFAOYSA-L Magnesium perchlorate Chemical compound [Mg+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O MPCRDALPQLDDFX-UHFFFAOYSA-L 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VNDYJBBGRKZCSX-UHFFFAOYSA-L zinc bromide Chemical compound Br[Zn]Br VNDYJBBGRKZCSX-UHFFFAOYSA-L 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229940095564 anhydrous calcium sulfate Drugs 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- BGTFCAQCKWKTRL-YDEUACAXSA-N chembl1095986 Chemical compound C1[C@@H](N)[C@@H](O)[C@H](C)O[C@H]1O[C@@H]([C@H]1C(N[C@H](C2=CC(O)=CC(O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O)=C2C=2C(O)=CC=C(C=2)[C@@H](NC(=O)[C@@H]2NC(=O)[C@@H]3C=4C=C(C(=C(O)C=4)C)OC=4C(O)=CC=C(C=4)[C@@H](N)C(=O)N[C@@H](C(=O)N3)[C@H](O)C=3C=CC(O4)=CC=3)C(=O)N1)C(O)=O)=O)C(C=C1)=CC=C1OC1=C(O[C@@H]3[C@H]([C@H](O)[C@@H](O)[C@H](CO[C@@H]5[C@H]([C@@H](O)[C@H](O)[C@@H](C)O5)O)O3)O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O[C@@H]3[C@H]([C@H](O)[C@@H](CO)O3)O)C4=CC2=C1 BGTFCAQCKWKTRL-YDEUACAXSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940102001 zinc bromide Drugs 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は感光性ドライフィルムのコールドフローの防止
方法に関し、さらに詳しくは感光性ドライフィルムを乾
燥剤を挟んだ積層シートで包装することによって感光性
ドライフィルムのコールドフローを防止する方法に関す
る。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for preventing cold flow in a photosensitive dry film, and more specifically, the present invention relates to a method for preventing cold flow in a photosensitive dry film, and more specifically, the present invention relates to a method for preventing cold flow in a photosensitive dry film. The present invention relates to a method for preventing cold flow in dry film.
［従来の技術］
プリント配線基板の製造に用いられている感光性ドライ
フィルムは、感光性樹脂がベースシートとカバーシート
の２枚のプラスチックシートに挟まれ積層シートの形態
をしており、使用に際しては、カバーシートをはがしな
がら感光性樹脂をプリント配線板にラミネートし、所定
のマスクを介して紫外線を選択的に照射後、現像処理を
施してプリント配線板上に画像を形成するようにしてい
る。この感光性ドライフィルムは従来の感光性樹脂溶液
を使用した、いわゆるウェット方式に対応して呼称する
ものであるが、フィルム状の感光性樹脂を用いることか
らその使用方法が簡便であり、最近ではウェット方式に
代わって使用されるようになってきた。感光性ドライフ
ィルムはロールの中心部に近いほどロール外側からの圧
力が内側に加わり、このために特にロールの内側では感
光性樹脂がはみ出る現象、すなわちコールドフロー現象
を生じ易い。さらにこの現象は湿度の影響を受けること
によって助長される。[Prior art] The photosensitive dry film used in the manufacture of printed wiring boards is in the form of a laminated sheet in which a photosensitive resin is sandwiched between two plastic sheets, a base sheet and a cover sheet. The method involves laminating a photosensitive resin onto a printed wiring board while peeling off the cover sheet, selectively irradiating it with ultraviolet rays through a prescribed mask, and then performing a development process to form an image on the printed wiring board. . This photosensitive dry film is named in response to the so-called wet method that uses a conventional photosensitive resin solution, but since it uses a film-like photosensitive resin, it is easy to use, and recently It has come to be used in place of the wet method. The closer the photosensitive dry film is to the center of the roll, the more pressure from the outside of the roll is applied to the inside, and for this reason, especially on the inside of the roll, a phenomenon in which the photosensitive resin protrudes, that is, a cold flow phenomenon is more likely to occur. Furthermore, this phenomenon is exacerbated by the influence of humidity.
そこで、従来ドライフィルムロールの側面部に、■カバ
ーディスクを当てる方法（特開昭６１−９５３４５号公
報）、■乾燥剤を入れた防水容器にドライフィルムを入
れる方法（特開昭６２−４４７３６号公９１１）、■シ
ート状乾燥剤で覆った積層体を当てる方法（特開平２−
５４２５５号公報）、また■感光性樹脂の組成を改良す
ることによって改善する方法（特公平２−１９９４１号
公報）などが知られている。Therefore, the conventional method of applying a cover disk to the side surface of a dry film roll (Japanese Patent Application Laid-open No. 61-95345), ■ placing the dry film in a waterproof container containing a desiccant (Japanese Patent Application Laid-Open No. 62-44736) 911), ■Method of applying a laminate covered with a sheet-like desiccant (Japanese Patent Application Laid-open No. 2003-1902-1)
54255 (Japanese Patent Publication No. 2-19941), and (2) a method of improving the composition of the photosensitive resin (Japanese Patent Publication No. 2-19941).
しかしながら■の方法では粘着剤の張りむらの影響を受
けやすく、またロール中心部に対する効果が低い、■の
方法にあっては容器内全体の湿度を所定以下に維持しな
ければならず、効率的ではないし、容器の材質や構造の
影響を受けやすい。However, method (■) is easily affected by uneven tension of the adhesive and is less effective for the center of the roll.Method (2) requires that the humidity of the entire container be maintained below a specified level, making it less efficient. It is not, and is easily affected by the material and structure of the container.
また■の方法に関しては、乾燥剤からゴミが発生しやす
く、感光性ドライフィルムの品質を損なう。In addition, with method (2), dust is likely to be generated from the desiccant, impairing the quality of the photosensitive dry film.
さらにまた■の方法においては、現像性などの各処理に
制限が加えられるなどと従来技術においては種々の問題
点があった。Furthermore, in the method (2), there were various problems in the prior art, such as restrictions being placed on various processes such as developability.
［発明が解決しようとする課題］
本発明は、このような事情、すなわち従来の感光性ドラ
イフィルムが有していた問題点を改善し、コールドフロ
ーを防止する方法を提供することを目的としてなしたも
のである。[Problems to be Solved by the Invention] The purpose of the present invention is to improve the above-mentioned problems, that is, the problems that conventional photosensitive dry films had, and to provide a method for preventing cold flow. This is what I did.
［課題を解決するための手段］
本発明者らは前記目的を達成するため鋭意研究を重ねた
結果、乾燥剤を挟んで積層構成としたシートにて感光性
ドライフィルムを包装することによってその目的を達成
できることを見い出し、この知見に基づいて本発明を完
成するに至った。[Means for Solving the Problems] As a result of extensive research in order to achieve the above object, the present inventors have achieved the above object by packaging a photosensitive dry film in a laminated sheet with a desiccant sandwiched therebetween. The present invention was completed based on this finding.
すなわち、本発明は、ロール状にされた感光性ドライフ
ィルムをシートにて包装するに際し、該シートが乾燥剤
を挟んで積層構造をなしていることを特徴とする感光性
ドライフィルムのコールドフローを防止する方法である
。That is, the present invention provides a cold flow method for photosensitive dry film, which is characterized in that when a rolled photosensitive dry film is packaged in a sheet, the sheet has a laminated structure with a desiccant sandwiched between the sheets. This is a method of prevention.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明方法に用いる乾燥剤としては五酸化リン、水酸化
カリウム、活性アルミナ、無水硫酸カルシウム、シリカ
ゲル、酸化マグネシウム、水酸化ナトリウム、酸化カル
シウム、無水塩化カルシウム、無水塩化亜鉛、無水臭化
亜鉛、無水硫酸銅、アンヒドロン、デヒドライト、ゼオ
ライトなどを挙げることができるが、この中で特に、ゼ
オライト、シリカゲルなどが好ましく使用され、これら
は単独でもまた２種以上を混合して用いることもできる
。また再生したものも使用することができる。The desiccant used in the method of the present invention includes phosphorus pentoxide, potassium hydroxide, activated alumina, anhydrous calcium sulfate, silica gel, magnesium oxide, sodium hydroxide, calcium oxide, anhydrous calcium chloride, anhydrous zinc chloride, anhydrous zinc bromide, anhydrous Copper sulfate, anhydrone, dehydrite, zeolite, etc. can be mentioned, and among these, zeolite, silica gel, etc. are particularly preferably used, and these can be used alone or in a mixture of two or more types. You can also use recycled ones.
乾燥剤を挟んで積層構造とするためのシートとしては、
ポリエステル、ポリプロピレン、ポリスチレン、ポリ塩
化ビニル、ナイロン、ポリカーボネートポリエチレン、
セルローストリアセテート、塩化ビニルと塩化ビニリデ
ンの共重合体、セロファンなどがあり、本発明の目的か
らすれば、感光性ドライフィルムを挟む２枚のシートの
うち感光性ドライフィルム側となるシートは透過湿度が
高い、例えば１０ ｇ／ｍ’／ ２４ ｈｒ以上、さら
に好ましくは２０−１０００ｇ／ｍＬ／２４ｈｒ以上の
範囲にあることが望ましい。このためにはその材質を適
宜選択する方法と、できるだけシートを薄くすることが
必要である。このような要件を満たすシート材料として
は、ポリエステル、ポリプロピレン、ポリスチレン、ポ
リ塩化ビニル、ナイロン、ポリカーボネート、セルロー
ストリアセテート、セロファン、線状低密度ポリエチレ
ンなどがあり、またシートの厚みは５〜５０μｍとする
のが好ましい。As a sheet to create a laminated structure with a desiccant in between,
Polyester, polypropylene, polystyrene, polyvinyl chloride, nylon, polycarbonate polyethylene,
These include cellulose triacetate, a copolymer of vinyl chloride and vinylidene chloride, cellophane, etc. For the purpose of the present invention, of the two sheets sandwiching the photosensitive dry film, the sheet facing the photosensitive dry film has a low permeation humidity. It is desirable that it be in a high range, for example, 10 g/m'/24 hr or more, more preferably 20-1000 g/mL/24 hr or more. For this purpose, it is necessary to appropriately select the material and to make the sheet as thin as possible. Sheet materials that meet these requirements include polyester, polypropylene, polystyrene, polyvinyl chloride, nylon, polycarbonate, cellulose triacetate, cellophane, and linear low-density polyethylene, and the sheet thickness should be 5 to 50 μm. is preferred.
一方、感光性ドライフィルム側とは反対側に使用するシ
ートとしては、湿度の透過性を極度に抑えることができ
ればどのようなものでも使用することができる。このよ
うなものとしては、ポリプロピレン、ポリエチレン、塩
化ビニルと塩化ビニリデンの共重合体などを挙げること
ができ、シートの厚さは作業性を考えるとあまり厚くな
い方がよく、例えば２００μｍ以下、さらに好ましくは
２０〜２００μｍの範囲である。また水蒸気透過性を低
減させるため、外側にアルミニウムなどの金属箔を蒸着
した被膜を設けてもよく、アルミニウムなどの金属箔ラ
ミネート加工したものでもよい。On the other hand, as the sheet used on the side opposite to the photosensitive dry film side, any sheet can be used as long as it can extremely suppress moisture permeability. Examples of such materials include polypropylene, polyethylene, and copolymers of vinyl chloride and vinylidene chloride. Considering workability, the sheet should not be too thick, for example, 200 μm or less, more preferably. is in the range of 20 to 200 μm. Further, in order to reduce water vapor permeability, a coating formed by vapor-depositing a metal foil such as aluminum may be provided on the outside, or a film laminated with a metal foil such as aluminum may be used.
本発明方法に使用する感光性ドライフィルムとしては、
高分子結合剤、光重合性単量体、光重合開始剤を主成分
として成るものであるが、これらは市販されているもの
を使用することができる。The photosensitive dry film used in the method of the present invention includes:
The main components are a polymeric binder, a photopolymerizable monomer, and a photopolymerization initiator, and commercially available products can be used.
このようなものとしては東京応化工業社のオーディル、
デュポン社のリストン、ダイナケム社のラミナー 日立
化成工業社のフオテック、旭化成工業社のサンフォート
、三菱レイヨン社のダイヤロン、日本合成化学工業社の
アルフオなどがある。Such products include Tokyo Ohka Kogyo's Ordil,
Examples include DuPont's Riston, Dynachem's Laminar, Hitachi Chemical's Huotec, Asahi Kasei's Sunfort, Mitsubishi Rayon's Dialon, and Nippon Gosei's Alpha.
本発明の方法はこれらの中で特に弱アルカリ水ン８液に
て現像可能な感光性ドライフィルムに効果かある。Among these, the method of the present invention is particularly effective for photosensitive dry films that can be developed with 8 weakly alkaline water solutions.
次に本発明方法の代表的１例をもって説明する乾燥剤を
挟んだ積層体シートは、乾燥剤を挟むシート２枚と乾燥
剤とを押し出しフィルム成形装置により同時に押し出す
ことにより容易に貼り合わせることができる。Next, a laminate sheet sandwiching a desiccant, which will be explained using a typical example of the method of the present invention, can be easily bonded together by simultaneously extruding two sheets sandwiching a desiccant and the desiccant using an extrusion film forming device. can.
これでロール状にした感光性ドライフィルムを包むこと
によってコールドフローを防止することができる。By wrapping the roll of photosensitive dry film in this way, cold flow can be prevented.
また必要によっては、包んでからロール状にした感光性
ドライフィルムの巻芯部分にスリーブを当てることによ
って巻き締まりを防止することができる。Further, if necessary, tight winding can be prevented by applying a sleeve to the core portion of the photosensitive dry film that has been wrapped and rolled.
［実施例］
次に実施例を挙げて本発明をさらに詳細に説明するが、
本発明はこれらの例によって何ら制限されるものではな
い。[Example] Next, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited to these examples in any way.
実施例１〜２．比較例
ロール状に巻かれた幅１３インチ、長さ１２０ｍの感光
性ドライフィルム（東京応化工業（株）製、オーディル
ＡＦ７５０）を表に示す厚さ１３０μｍの各包装材フィ
ルムで包み、温度３０℃、湿度７０％に保持した恒温、
恒温層内に入れてコアホルダを付けて宙吊りにした状態
で放置した。一定時間ごとにコールドフローの状態を観
察した結果を併せて表に示した。Examples 1-2. Comparative Example A photosensitive dry film (manufactured by Tokyo Ohka Kogyo Co., Ltd., Ordil AF750) wound into a roll with a width of 13 inches and a length of 120 m was wrapped in each packaging material film with a thickness of 130 μm shown in the table and heated at a temperature of 30°C. , constant temperature maintained at 70% humidity,
It was placed in a thermostatic chamber and left suspended in the air with a core holder attached. The results of observing the cold flow condition at regular intervals are also shown in the table.
表
包装材
（１）は１０μｍの低密度ポリエチレンと５０μｍの高
密度ポリエチレンとの間に５０μｍの厚さにした乾燥剤
、シリカゲルを用いた積層構造体（２）は２０μｍの線
状低密度ポリエチレンとアルミニウム箔を積層した３０
μｍの低密度ポリエチレンとの間に３０μｍの厚さにし
た乾燥剤、ゼオライトを用いた積層構造体
表中
◎はコールドフローが見られなかった
○は巻芯より１〜２ｍｍ程度のコールドフローがあった
△は巻芯より５〜１０ｍｍ程度のコールド７０−があっ
た×は巻芯より１０〜１５ｍｍ程度のコールド７０−が
あった×× は巻芯より１５ｍｍ以上のコールドフロー
があったことをそれぞれ示す。The outer packaging material (1) is a desiccant material with a thickness of 50 μm between 10 μm low-density polyethylene and 50 μm high-density polyethylene, and the laminated structure (2) using silica gel is a 20 μm linear low-density polyethylene. 30 laminated with aluminum foil
A laminated structure using a desiccant and zeolite with a thickness of 30 μm between low-density polyethylene and zeolite. △ indicates that there was a cold flow of about 5 to 10 mm from the winding core. × indicates that there was a cold flow of about 10 to 15 mm from the winding core. show.
［発明の効果］
本発明の方法は乾燥剤を挟んだ積層シートを使用したこ
とにより、従来の感光性ドライフィルムでは得られなか
ったコールド７０−を防止することができる。[Effects of the Invention] The method of the present invention uses a laminated sheet with a desiccant interposed therebetween, so that cold 70-, which could not be obtained with conventional photosensitive dry films, can be prevented.
特許出願人 東京応化工業株式会社 代理人 弁理士 伊 東 彰Patent applicant: Tokyo Ohka Kogyo Co., Ltd. Agent: Patent Attorney Akira Ito
Claims (1)
にて包装するに際し、該シートが乾燥剤を挟んで積層構
造をなしていることを特徴とする感光性ドライフィルム
のコールドフローの防止方法。(1) A method for preventing cold flow in a photosensitive dry film, characterized in that when a roll of photosensitive dry film is packaged in sheets, the sheets have a laminated structure with a desiccant sandwiched between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2240079A JPH0621938B2 (en) | 1990-09-12 | 1990-09-12 | How to prevent cold flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2240079A JPH0621938B2 (en) | 1990-09-12 | 1990-09-12 | How to prevent cold flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04120533A true JPH04120533A (en) | 1992-04-21 |
| JPH0621938B2 JPH0621938B2 (en) | 1994-03-23 |
Family
ID=17054181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2240079A Expired - Fee Related JPH0621938B2 (en) | 1990-09-12 | 1990-09-12 | How to prevent cold flow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621938B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244736A (en) * | 1985-08-19 | 1987-02-26 | ハーキュリーズ・インコーポレーテッド | Use of drying agent for preventing fusing of rim in dry filmphotoresist |
| JPS63105142U (en) * | 1986-11-27 | 1988-07-07 | ||
| JPH0254255A (en) * | 1988-08-19 | 1990-02-23 | Hitachi Chem Co Ltd | Laminated element and method of preventing bleeding thereof |
-
1990
- 1990-09-12 JP JP2240079A patent/JPH0621938B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244736A (en) * | 1985-08-19 | 1987-02-26 | ハーキュリーズ・インコーポレーテッド | Use of drying agent for preventing fusing of rim in dry filmphotoresist |
| JPS63105142U (en) * | 1986-11-27 | 1988-07-07 | ||
| JPH0254255A (en) * | 1988-08-19 | 1990-02-23 | Hitachi Chem Co Ltd | Laminated element and method of preventing bleeding thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0621938B2 (en) | 1994-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4105118A (en) | Laminates useful as packaging materials and container having alkaline fluid means | |
| US4680248A (en) | Use of desiccant to control edge fusion in dry film photoresist | |
| JPH04120533A (en) | Method for preventing cold flow | |
| JPS63121840A (en) | Packaging bag for photographic sensitive material | |
| JP2867091B2 (en) | Photosensitive material packaging | |
| JP2730630B2 (en) | Laminated element and method for preventing oozing thereof | |
| JP2003057790A (en) | Protection member for sheet type heat developable photosensitive material and package for sheet type heat developable photosensitive material using protection member | |
| JP2002099079A (en) | Packaged body, method of packaging photosensitive element, method of preventing edge fusion of photosensitive element, and method of preventing winding dislocation of photosensitive element | |
| JPS6178687A (en) | Film for overhead projector | |
| JPH0641246Y2 (en) | Photosensitive sheet packaging | |
| JP2005170510A (en) | Moisture-proof packaging method for acrylic resin plate | |
| JP3594319B2 (en) | Method for maintaining function of laminate having specific functional layer | |
| JP2002037379A (en) | Method for preserving roll-like article, roll-like article on which low moisture-permeable sheet is arranged, method for packing roll-like article, and packed article | |
| JP2003312735A (en) | Photosensitive element and packaging bag for rolled photosensitive element | |
| JPH066351Y2 (en) | Packaging material for photographic light-sensitive material containing dye | |
| JP2505146Y2 (en) | Oxygen indicator attached oxygen absorber packaging | |
| JPH11333966A (en) | Highly moistureproof laminate | |
| JP3056654U (en) | Edge protection material for film roll | |
| JPH07101297B2 (en) | Packaging material for photographic materials | |
| JPH0256547A (en) | Packaging material for photographic sensitive material | |
| JPS6324586A (en) | Light emitting device | |
| JP2000025146A (en) | Highly moistureproofing laminate | |
| JP2588946Y2 (en) | Powder bag | |
| JPH0748660Y2 (en) | Adhesive sheet | |
| JPH0717519Y2 (en) | Decorative member with photographic image |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |